Find IP IPv4 Network/Subnet and its host address ranges

What is an IPv4 IP address its network and host address ranges?

An IPv4 IP address is an address used in order to uniquely identify a device on an IP network. The address is made up of 32 binary bits, which can be divisible into a network portion and host portion with the help of a subnet mask. The 32 binary bits are broken into four octets (1 octet = 8 bits). Each octet is converted to decimal and separated by a period (dot).

How to Subnet IPv4? Its simple answer is that subnetting is the process of taking a network and splitting it into smaller networks, known as subnets. It's used to free up more public IPv4 addresses and segment networks for security and easier management.
Following are the ranges of IPv4 subnet/network address and their host addresses.

IPv4 AddressIPv6 Address
170.255.187.1 0:0:0:0:0:ffff:aaff:bb01
170.255.187.2 0:0:0:0:0:ffff:aaff:bb02
170.255.187.3 0:0:0:0:0:ffff:aaff:bb03
170.255.187.4 0:0:0:0:0:ffff:aaff:bb04
170.255.187.5 0:0:0:0:0:ffff:aaff:bb05
170.255.187.6 0:0:0:0:0:ffff:aaff:bb06
170.255.187.7 0:0:0:0:0:ffff:aaff:bb07
170.255.187.8 0:0:0:0:0:ffff:aaff:bb08
170.255.187.9 0:0:0:0:0:ffff:aaff:bb09
170.255.187.10 0:0:0:0:0:ffff:aaff:bb0a
170.255.187.11 0:0:0:0:0:ffff:aaff:bb0b
170.255.187.12 0:0:0:0:0:ffff:aaff:bb0c
170.255.187.13 0:0:0:0:0:ffff:aaff:bb0d
170.255.187.14 0:0:0:0:0:ffff:aaff:bb0e
170.255.187.15 0:0:0:0:0:ffff:aaff:bb0f
170.255.187.16 0:0:0:0:0:ffff:aaff:bb10
170.255.187.17 0:0:0:0:0:ffff:aaff:bb11
170.255.187.18 0:0:0:0:0:ffff:aaff:bb12
170.255.187.19 0:0:0:0:0:ffff:aaff:bb13
170.255.187.20 0:0:0:0:0:ffff:aaff:bb14
170.255.187.21 0:0:0:0:0:ffff:aaff:bb15
170.255.187.22 0:0:0:0:0:ffff:aaff:bb16
170.255.187.23 0:0:0:0:0:ffff:aaff:bb17
170.255.187.24 0:0:0:0:0:ffff:aaff:bb18
170.255.187.25 0:0:0:0:0:ffff:aaff:bb19
170.255.187.26 0:0:0:0:0:ffff:aaff:bb1a
170.255.187.27 0:0:0:0:0:ffff:aaff:bb1b
170.255.187.28 0:0:0:0:0:ffff:aaff:bb1c
170.255.187.29 0:0:0:0:0:ffff:aaff:bb1d
170.255.187.30 0:0:0:0:0:ffff:aaff:bb1e
170.255.187.31 0:0:0:0:0:ffff:aaff:bb1f
170.255.187.32 0:0:0:0:0:ffff:aaff:bb20
170.255.187.33 0:0:0:0:0:ffff:aaff:bb21
170.255.187.34 0:0:0:0:0:ffff:aaff:bb22
170.255.187.35 0:0:0:0:0:ffff:aaff:bb23
170.255.187.36 0:0:0:0:0:ffff:aaff:bb24
170.255.187.37 0:0:0:0:0:ffff:aaff:bb25
170.255.187.38 0:0:0:0:0:ffff:aaff:bb26
170.255.187.39 0:0:0:0:0:ffff:aaff:bb27
170.255.187.40 0:0:0:0:0:ffff:aaff:bb28
170.255.187.41 0:0:0:0:0:ffff:aaff:bb29
170.255.187.42 0:0:0:0:0:ffff:aaff:bb2a
170.255.187.43 0:0:0:0:0:ffff:aaff:bb2b
170.255.187.44 0:0:0:0:0:ffff:aaff:bb2c
170.255.187.45 0:0:0:0:0:ffff:aaff:bb2d
170.255.187.46 0:0:0:0:0:ffff:aaff:bb2e
170.255.187.47 0:0:0:0:0:ffff:aaff:bb2f
170.255.187.48 0:0:0:0:0:ffff:aaff:bb30
170.255.187.49 0:0:0:0:0:ffff:aaff:bb31
170.255.187.50 0:0:0:0:0:ffff:aaff:bb32
170.255.187.51 0:0:0:0:0:ffff:aaff:bb33
170.255.187.52 0:0:0:0:0:ffff:aaff:bb34
170.255.187.53 0:0:0:0:0:ffff:aaff:bb35
170.255.187.54 0:0:0:0:0:ffff:aaff:bb36
170.255.187.55 0:0:0:0:0:ffff:aaff:bb37
170.255.187.56 0:0:0:0:0:ffff:aaff:bb38
170.255.187.57 0:0:0:0:0:ffff:aaff:bb39
170.255.187.58 0:0:0:0:0:ffff:aaff:bb3a
170.255.187.59 0:0:0:0:0:ffff:aaff:bb3b
170.255.187.60 0:0:0:0:0:ffff:aaff:bb3c


170.255.187.61 0:0:0:0:0:ffff:aaff:bb3d
170.255.187.62 0:0:0:0:0:ffff:aaff:bb3e
170.255.187.63 0:0:0:0:0:ffff:aaff:bb3f
170.255.187.64 0:0:0:0:0:ffff:aaff:bb40
170.255.187.65 0:0:0:0:0:ffff:aaff:bb41
170.255.187.66 0:0:0:0:0:ffff:aaff:bb42
170.255.187.67 0:0:0:0:0:ffff:aaff:bb43
170.255.187.68 0:0:0:0:0:ffff:aaff:bb44
170.255.187.69 0:0:0:0:0:ffff:aaff:bb45
170.255.187.70 0:0:0:0:0:ffff:aaff:bb46
170.255.187.71 0:0:0:0:0:ffff:aaff:bb47
170.255.187.72 0:0:0:0:0:ffff:aaff:bb48
170.255.187.73 0:0:0:0:0:ffff:aaff:bb49
170.255.187.74 0:0:0:0:0:ffff:aaff:bb4a
170.255.187.75 0:0:0:0:0:ffff:aaff:bb4b
170.255.187.76 0:0:0:0:0:ffff:aaff:bb4c
170.255.187.77 0:0:0:0:0:ffff:aaff:bb4d
170.255.187.78 0:0:0:0:0:ffff:aaff:bb4e
170.255.187.79 0:0:0:0:0:ffff:aaff:bb4f
170.255.187.80 0:0:0:0:0:ffff:aaff:bb50
170.255.187.81 0:0:0:0:0:ffff:aaff:bb51
170.255.187.82 0:0:0:0:0:ffff:aaff:bb52
170.255.187.83 0:0:0:0:0:ffff:aaff:bb53
170.255.187.84 0:0:0:0:0:ffff:aaff:bb54
170.255.187.85 0:0:0:0:0:ffff:aaff:bb55
170.255.187.86 0:0:0:0:0:ffff:aaff:bb56
170.255.187.87 0:0:0:0:0:ffff:aaff:bb57
170.255.187.88 0:0:0:0:0:ffff:aaff:bb58
170.255.187.89 0:0:0:0:0:ffff:aaff:bb59
170.255.187.90 0:0:0:0:0:ffff:aaff:bb5a
170.255.187.91 0:0:0:0:0:ffff:aaff:bb5b
170.255.187.92 0:0:0:0:0:ffff:aaff:bb5c
170.255.187.93 0:0:0:0:0:ffff:aaff:bb5d
170.255.187.94 0:0:0:0:0:ffff:aaff:bb5e
170.255.187.95 0:0:0:0:0:ffff:aaff:bb5f
170.255.187.96 0:0:0:0:0:ffff:aaff:bb60
170.255.187.97 0:0:0:0:0:ffff:aaff:bb61
170.255.187.98 0:0:0:0:0:ffff:aaff:bb62
170.255.187.99 0:0:0:0:0:ffff:aaff:bb63
170.255.187.100 0:0:0:0:0:ffff:aaff:bb64
170.255.187.101 0:0:0:0:0:ffff:aaff:bb65
170.255.187.102 0:0:0:0:0:ffff:aaff:bb66
170.255.187.103 0:0:0:0:0:ffff:aaff:bb67
170.255.187.104 0:0:0:0:0:ffff:aaff:bb68
170.255.187.105 0:0:0:0:0:ffff:aaff:bb69
170.255.187.106 0:0:0:0:0:ffff:aaff:bb6a
170.255.187.107 0:0:0:0:0:ffff:aaff:bb6b
170.255.187.108 0:0:0:0:0:ffff:aaff:bb6c
170.255.187.109 0:0:0:0:0:ffff:aaff:bb6d
170.255.187.110 0:0:0:0:0:ffff:aaff:bb6e
170.255.187.111 0:0:0:0:0:ffff:aaff:bb6f
170.255.187.112 0:0:0:0:0:ffff:aaff:bb70
170.255.187.113 0:0:0:0:0:ffff:aaff:bb71
170.255.187.114 0:0:0:0:0:ffff:aaff:bb72
170.255.187.115 0:0:0:0:0:ffff:aaff:bb73
170.255.187.116 0:0:0:0:0:ffff:aaff:bb74
170.255.187.117 0:0:0:0:0:ffff:aaff:bb75
170.255.187.118 0:0:0:0:0:ffff:aaff:bb76
170.255.187.119 0:0:0:0:0:ffff:aaff:bb77
170.255.187.120 0:0:0:0:0:ffff:aaff:bb78


170.255.187.121 0:0:0:0:0:ffff:aaff:bb79
170.255.187.122 0:0:0:0:0:ffff:aaff:bb7a
170.255.187.123 0:0:0:0:0:ffff:aaff:bb7b
170.255.187.124 0:0:0:0:0:ffff:aaff:bb7c
170.255.187.125 0:0:0:0:0:ffff:aaff:bb7d
170.255.187.126 0:0:0:0:0:ffff:aaff:bb7e
170.255.187.127 0:0:0:0:0:ffff:aaff:bb7f
170.255.187.128 0:0:0:0:0:ffff:aaff:bb80
170.255.187.129 0:0:0:0:0:ffff:aaff:bb81
170.255.187.130 0:0:0:0:0:ffff:aaff:bb82
170.255.187.131 0:0:0:0:0:ffff:aaff:bb83
170.255.187.132 0:0:0:0:0:ffff:aaff:bb84
170.255.187.133 0:0:0:0:0:ffff:aaff:bb85
170.255.187.134 0:0:0:0:0:ffff:aaff:bb86
170.255.187.135 0:0:0:0:0:ffff:aaff:bb87
170.255.187.136 0:0:0:0:0:ffff:aaff:bb88
170.255.187.137 0:0:0:0:0:ffff:aaff:bb89
170.255.187.138 0:0:0:0:0:ffff:aaff:bb8a
170.255.187.139 0:0:0:0:0:ffff:aaff:bb8b
170.255.187.140 0:0:0:0:0:ffff:aaff:bb8c
170.255.187.141 0:0:0:0:0:ffff:aaff:bb8d
170.255.187.142 0:0:0:0:0:ffff:aaff:bb8e
170.255.187.143 0:0:0:0:0:ffff:aaff:bb8f
170.255.187.144 0:0:0:0:0:ffff:aaff:bb90
170.255.187.145 0:0:0:0:0:ffff:aaff:bb91
170.255.187.146 0:0:0:0:0:ffff:aaff:bb92
170.255.187.147 0:0:0:0:0:ffff:aaff:bb93
170.255.187.148 0:0:0:0:0:ffff:aaff:bb94
170.255.187.149 0:0:0:0:0:ffff:aaff:bb95
170.255.187.150 0:0:0:0:0:ffff:aaff:bb96
170.255.187.151 0:0:0:0:0:ffff:aaff:bb97
170.255.187.152 0:0:0:0:0:ffff:aaff:bb98
170.255.187.153 0:0:0:0:0:ffff:aaff:bb99
170.255.187.154 0:0:0:0:0:ffff:aaff:bb9a
170.255.187.155 0:0:0:0:0:ffff:aaff:bb9b
170.255.187.156 0:0:0:0:0:ffff:aaff:bb9c
170.255.187.157 0:0:0:0:0:ffff:aaff:bb9d
170.255.187.158 0:0:0:0:0:ffff:aaff:bb9e
170.255.187.159 0:0:0:0:0:ffff:aaff:bb9f
170.255.187.160 0:0:0:0:0:ffff:aaff:bba0
170.255.187.161 0:0:0:0:0:ffff:aaff:bba1
170.255.187.162 0:0:0:0:0:ffff:aaff:bba2
170.255.187.163 0:0:0:0:0:ffff:aaff:bba3
170.255.187.164 0:0:0:0:0:ffff:aaff:bba4
170.255.187.165 0:0:0:0:0:ffff:aaff:bba5
170.255.187.166 0:0:0:0:0:ffff:aaff:bba6
170.255.187.167 0:0:0:0:0:ffff:aaff:bba7
170.255.187.168 0:0:0:0:0:ffff:aaff:bba8
170.255.187.169 0:0:0:0:0:ffff:aaff:bba9
170.255.187.170 0:0:0:0:0:ffff:aaff:bbaa
170.255.187.171 0:0:0:0:0:ffff:aaff:bbab
170.255.187.172 0:0:0:0:0:ffff:aaff:bbac
170.255.187.173 0:0:0:0:0:ffff:aaff:bbad
170.255.187.174 0:0:0:0:0:ffff:aaff:bbae
170.255.187.175 0:0:0:0:0:ffff:aaff:bbaf
170.255.187.176 0:0:0:0:0:ffff:aaff:bbb0
170.255.187.177 0:0:0:0:0:ffff:aaff:bbb1
170.255.187.178 0:0:0:0:0:ffff:aaff:bbb2
170.255.187.179 0:0:0:0:0:ffff:aaff:bbb3
170.255.187.180 0:0:0:0:0:ffff:aaff:bbb4


170.255.187.181 0:0:0:0:0:ffff:aaff:bbb5
170.255.187.182 0:0:0:0:0:ffff:aaff:bbb6
170.255.187.183 0:0:0:0:0:ffff:aaff:bbb7
170.255.187.184 0:0:0:0:0:ffff:aaff:bbb8
170.255.187.185 0:0:0:0:0:ffff:aaff:bbb9
170.255.187.186 0:0:0:0:0:ffff:aaff:bbba
170.255.187.187 0:0:0:0:0:ffff:aaff:bbbb
170.255.187.188 0:0:0:0:0:ffff:aaff:bbbc
170.255.187.189 0:0:0:0:0:ffff:aaff:bbbd
170.255.187.190 0:0:0:0:0:ffff:aaff:bbbe
170.255.187.191 0:0:0:0:0:ffff:aaff:bbbf
170.255.187.192 0:0:0:0:0:ffff:aaff:bbc0
170.255.187.193 0:0:0:0:0:ffff:aaff:bbc1
170.255.187.194 0:0:0:0:0:ffff:aaff:bbc2
170.255.187.195 0:0:0:0:0:ffff:aaff:bbc3
170.255.187.196 0:0:0:0:0:ffff:aaff:bbc4
170.255.187.197 0:0:0:0:0:ffff:aaff:bbc5
170.255.187.198 0:0:0:0:0:ffff:aaff:bbc6
170.255.187.199 0:0:0:0:0:ffff:aaff:bbc7
170.255.187.200 0:0:0:0:0:ffff:aaff:bbc8
170.255.187.201 0:0:0:0:0:ffff:aaff:bbc9
170.255.187.202 0:0:0:0:0:ffff:aaff:bbca
170.255.187.203 0:0:0:0:0:ffff:aaff:bbcb
170.255.187.204 0:0:0:0:0:ffff:aaff:bbcc
170.255.187.205 0:0:0:0:0:ffff:aaff:bbcd
170.255.187.206 0:0:0:0:0:ffff:aaff:bbce
170.255.187.207 0:0:0:0:0:ffff:aaff:bbcf
170.255.187.208 0:0:0:0:0:ffff:aaff:bbd0
170.255.187.209 0:0:0:0:0:ffff:aaff:bbd1
170.255.187.210 0:0:0:0:0:ffff:aaff:bbd2
170.255.187.211 0:0:0:0:0:ffff:aaff:bbd3
170.255.187.212 0:0:0:0:0:ffff:aaff:bbd4
170.255.187.213 0:0:0:0:0:ffff:aaff:bbd5
170.255.187.214 0:0:0:0:0:ffff:aaff:bbd6
170.255.187.215 0:0:0:0:0:ffff:aaff:bbd7
170.255.187.216 0:0:0:0:0:ffff:aaff:bbd8
170.255.187.217 0:0:0:0:0:ffff:aaff:bbd9
170.255.187.218 0:0:0:0:0:ffff:aaff:bbda
170.255.187.219 0:0:0:0:0:ffff:aaff:bbdb
170.255.187.220 0:0:0:0:0:ffff:aaff:bbdc
170.255.187.221 0:0:0:0:0:ffff:aaff:bbdd
170.255.187.222 0:0:0:0:0:ffff:aaff:bbde
170.255.187.223 0:0:0:0:0:ffff:aaff:bbdf
170.255.187.224 0:0:0:0:0:ffff:aaff:bbe0
170.255.187.225 0:0:0:0:0:ffff:aaff:bbe1
170.255.187.226 0:0:0:0:0:ffff:aaff:bbe2
170.255.187.227 0:0:0:0:0:ffff:aaff:bbe3
170.255.187.228 0:0:0:0:0:ffff:aaff:bbe4
170.255.187.229 0:0:0:0:0:ffff:aaff:bbe5
170.255.187.230 0:0:0:0:0:ffff:aaff:bbe6
170.255.187.231 0:0:0:0:0:ffff:aaff:bbe7
170.255.187.232 0:0:0:0:0:ffff:aaff:bbe8
170.255.187.233 0:0:0:0:0:ffff:aaff:bbe9
170.255.187.234 0:0:0:0:0:ffff:aaff:bbea
170.255.187.235 0:0:0:0:0:ffff:aaff:bbeb
170.255.187.236 0:0:0:0:0:ffff:aaff:bbec
170.255.187.237 0:0:0:0:0:ffff:aaff:bbed
170.255.187.238 0:0:0:0:0:ffff:aaff:bbee
170.255.187.239 0:0:0:0:0:ffff:aaff:bbef
170.255.187.240 0:0:0:0:0:ffff:aaff:bbf0
170.255.187.241 0:0:0:0:0:ffff:aaff:bbf1
170.255.187.242 0:0:0:0:0:ffff:aaff:bbf2
170.255.187.243 0:0:0:0:0:ffff:aaff:bbf3
170.255.187.244 0:0:0:0:0:ffff:aaff:bbf4
170.255.187.245 0:0:0:0:0:ffff:aaff:bbf5
170.255.187.246 0:0:0:0:0:ffff:aaff:bbf6
170.255.187.247 0:0:0:0:0:ffff:aaff:bbf7
170.255.187.248 0:0:0:0:0:ffff:aaff:bbf8
170.255.187.249 0:0:0:0:0:ffff:aaff:bbf9
170.255.187.250 0:0:0:0:0:ffff:aaff:bbfa
170.255.187.251 0:0:0:0:0:ffff:aaff:bbfb
170.255.187.252 0:0:0:0:0:ffff:aaff:bbfc
170.255.187.253 0:0:0:0:0:ffff:aaff:bbfd
170.255.187.254 0:0:0:0:0:ffff:aaff:bbfe
170.255.187.255 0:0:0:0:0:ffff:aaff:bbff


How we got IPv4 subnet masks?

An IPv4 subnet mask consists of 32 bits; it is a sequence of ones (1) followed by a block of zeros (0). The ones indicate bits in the address used for the network prefix and the trailing block of zeros designates that part as being the host identifier.